Home / 785,743.76-1,178,242.22-359,154.56

Finding the Fourth Proportional to 785,743.76, 1,178,242.22 and 359,154.56

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Solution

The fourth proportional to 785,743.76, 1,178,242.22 and 359,154.56 is: 538,561.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,743.76 : 1,178,242.22 = 359,154.56 : x
  2. Step 2: Convert to fraction form
    785,743.76/1,178,242.22 = 359,154.56/x
  3. Step 3: Cross multiply
    785,743.76x = 1,178,242.22 × 359,154.56
  4. Step 4: Simplify right side
    785,743.76x = 423,171,066,097.52
  5. Step 5: Solve for x
    x = 423,171,066,097.52/785,743.76
  6. Step 6: Final answer
    x = 538,561.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.